InChI=1S/C27H28O15/c1-8-5-10-15(12(6-8)40-26-22(35)19(32)17(30)13(7-28)41-26)18(31)14-9(16(10)29)3-2-4-11(14)39-27-23(36)20(33)21(34)24(42-27)25(37)38/h2-6,13,17,19-24,26-28,30,32-36H,7H2,1H3,(H,37,38)